Product Summary

  • The TDA7850 is a breakthrough MOSFET technology class AB audio power amplifier in Flexiwatt27 package designed for high power car radio. The fully complementary P-Channel/NChannel output structure allows a rail to rail output voltage swing which, combined with high output current and minimized saturation losses sets new power references in the car-radio field, with unparalleled distortion performances. The TDA7850 integrates a DC offset detector.

Parametrics

TDA7850 absolute maxing ratings: (1)VS Operating supply voltage: 18 V; (2)VS (DC) DC supply voltage: 28 V; (3)VS (pk) Peak supply voltage (for t = 50ms): 50 V; (4)IO Output peak current repetitive (duty cycle 10% at f = 10Hz): 9A; non repetitive (t = 100μs): 10A; (5)Ptot Power dissipation Tcase = 70℃: 80 W; (6)Tj Junction temperature: 150 ℃; (7)Tstg Storage temperature: -55 to 150 ℃.

Features

TDA7850 features: (1)High output power capability: 4 × 50W/4Ω max; 4 × 30W/4Ω@ 14.4V, 1KHz, 10%; 4 × 80W/2Ω max; 4 × 55W/2Ω @ 14.4V, 1KHz, 10%; (2)MOSFET output power stage; (3)Excellent 2Ω driving capability; (4)Hi-fi class distortion; (5)Low output noise; (6)St-by function; (7)Mute function; (8)Automute at min. supply voltage detection; (9)Low external component count: Internally fixed gain (26dB); No external compensation; No bootstrap capacitors; (10)On board 0.35A high side driver.

Diagrams

TDA7850 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TDA7850
TDA7850

STMicroelectronics

Audio Amplifiers 4 x 50 W MOSFET Quad Bridge Pwr Amplifier

Data Sheet

0-211: $5.96
211-250: $5.44
250-500: $5.08
500-1000: $4.66
TDA7850A
TDA7850A

STMicroelectronics

Audio Amplifiers 4 x 50 W MOSFET Quad Bridge Pwr Amplifier

Data Sheet

0-211: $5.96
211-250: $5.44
250-500: $5.08
500-1000: $4.66
TDA7850AH
TDA7850AH

STMicroelectronics

Audio Amplifiers 4 x 50 W MOSFET Quad Bridge Pwr Amplifier

Data Sheet

0-211: $5.96
211-250: $5.44
250-500: $5.08
500-1000: $4.66
TDA7850ASM
TDA7850ASM

STMicroelectronics

Audio Amplifiers 4 x 50 W MOSFET Quad Bridge Pwr Amplifier

Data Sheet

0-179: $8.62
179-250: $6.68
250-500: $5.82
500-1000: $5.67
TDA7850H
TDA7850H

STMicroelectronics

Audio Amplifiers 4 x 50 W MOSFET Quad Bridge Pwr Amplifier

Data Sheet

0-211: $5.96
211-250: $5.44
250-500: $5.08
500-1000: $4.66